CLADOENDESIS OF EPHEMEROPTERA
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Figure 54. Radulapalpata-Heptagenia/f6=g5-Kageronia/g1.

A–H – Kageronia/g1 orbiticola [Heptagenia], larva: A – mature larva; B – hypopharynx and superlinguae, ventral view; C – glossae and paraglossae, dorsal view (in left half) and ventral view (in right half); D – distal segment of left labial palp, ventral view; E–F – left and right mandibles, dorsal view; G – claw; H – outer margin of femur. I–M – Kageronia/g1 fuscogrisea [Ephemera]: I – subimaginal exuviae of right half of mesonotum (see abbreviations on Fig.52:C); J – imaginal pterothorax, lateral view; K – glossae, dorsal view (in left half) and ventral view (in right half); L – glossae and ventral margin of hypopharynx, apical view; M – apex of left maxilla, dorsal view (dentisetae shown by dots, setae of inner-ventral row shown by black). (A–H – from Kluge 1987a; K–L – from Kluge 1988a; M – from Kluge 1998).

Abbreviations: ES – episternum; i – incisor; kd – kinetodontium; m – mola; MNs – mesonotal suture; prs – prostheca.